Machine for facilitating the trimming of wall-paper.



G. GREEN, J11. MACHINE FOR FAGILITATINGTHE TRIMMING 0F WALL PAPER. APPLICATION FILED APR.19, 1913. Patented Feb. 16, 1915.

Z SHEETS-SHEET 1.

THE NORRIS PETERS CO1, PHOTO-LIIHIL. WASHINGTUN, 0, c4

O. GREEN, JR. MAGHINB FOR FACILITATING THE TRIMMING 0F WALL PAPER.

APPLICATION FILED APR.19, 191B.

1JQ@,TT5 Patented Feb. 16, 1915.

2 SHEETS-SHEET 2.

"HE NORRIS PETERS '60,. PHOTo-LITHQ. WA$HINGTON,-D. c.

t 1.1 l l MACHINE FOR FACILITATING THE TRIMMING OF WALL-PAPER.

Specification of Letters Iatent.

Patented Feb. 106, 1915..

Application filed April 19, 1913. Serial No. 762,282.

To all whom it may concern:

Be it known that I, CHARLES GREEN, Jr., engineer, a subject of the King of Great Britain, residing at 21 Northdown street, Kings Cross, London, England, have invented certain new and useful Improvements in Machines for Facilitating the Trimming of Wall-Paper, and of which the following is a specification.

In the manufacture of wall-papers, an edging of perhaps half an inch in breadth is left blank on each side of the printed pattern on the paper. This edging is left for two reasons, firstly because it is difficult to print accurately to the actual edge of the web of paper, and secondly because each roll of paper forming a piece would be liable to damage at its edges, either by fading owing to light or contact with moisture, or by becoming bruised or torn. The unprinted edge on the roll of paper there fore protects the said paper up to the moment when it is to be hung on thewalls, and then the unprinted edge is cut off with scissors or with a cutting machine provided for the purpose.

Now the object of this present invention is to provide a compact hand-operated machine by means of which the paper in the piece may be grooved at the edges of the printed pattern, so that the substance of the paper at such grooves is weakened to enable it to be readily severed, such grooving taking place from opposite sides of the paper, and leaving a depression, half impressed from one side and half impressed from the other side of the opposite surfaces.

The distance of the edge of the printed pattern from the edges of the paper slightly varies, sometimes a wider unprinted edge being formed on one side than on the other; it is therefore necessary in the machine which is the subject of this invention, to provide means for adjusting the position of the paper during its passage through the machine relatively to the grooving rollers.

The present invention therefore particularly refers to providing means whereby the web of paper can receive slight lateral adjustment in either direction by hand controlled mechanism, during the operation of the machine, to maintain the grooving at the edges of the printed pattern.

The invention also comprises a convenient adjustment for determining the distance apart of the grooving rollers and also a mechanical device for moving the peripherally opposed rollers to and from each other.

In order that the invention may be clearly understood, reference is made to the accompanying drawings, in which,

Figure 1 shows in two portions a front elevation of the machine, and Fig. 2 is a r1ght hand sectional side elevation of the machme. Fig. 3 is a diagrammatic sectional v ew. Fig. 4 is a plan view of an adjustment device hereafter described.

1 s the main shaft of the machine to whlch is attached a handle 2 on one end for the purpose of rotating the same.

3 and 4 are two opposed grooving rollers shown at Fig. 3, the roller 3 being carried on a shaft 5 and the roller 4t upon the shaft 1, the shafts being carried in framework standards 6, 7, and 8 8 are two similar grooving rollers carried respectively also onthe shafts 5 and 1, and between these two pairs of perlpherally opposed grooving rollers the paper is to be passed in order to i1npress opposite grooves thereon.

The shaft 5 is carried upon adjustable rockers or brackets 9 which are fulcrumed on a shaft 10 extending between the frames 6, 7 of the machine, and 11 are adjustment screws, each bearing on an eccentric 12 carmod on a shaft 13 by means of which the pressure between the grooving rollers on the shafts 1 and 5 can be adjusted. It will be observed that the screws 11 rest upon the upper surfaces of the eccentrics 12, so that by turning the shaft 13 by means of a lever 13*, for example, so as to lower the surfaces of the eccentrics 12, the grooving rollers may be separated, while by returning the shaft 13 with the eccentrics 12 to their original position, the pressure between the grooving rollers, which had been determined by the adjustment screws 11, may be re-applied without any further adjustment.

The roll of paper to be grooved is placed upon a shaft 14 at one end of which is a stationary face-piece 15 forming part of a bracket bearing 17 and a spring-held faceplate 16 is carried on the shaft 141 in such a manner that a roll of paper on the shaft 14 is held up to the face-piece 15, and the paper may be drawn off while in this position with a small resisting friction due to the pressure of the spring-held face-plate 16. The shaft 14: is carried at both ends on brackets 17 which are supported on an adjustable table or platform 18, held in slides in the end frames 6, 7 of the machine-so as to be capable of sliding laterally therein, and a lateral adjustment is provided, actuated by means of a hand lever 19 pivoted at 19*, Fig. 2, and having an eccentric pin 20 passing through the table 18. By means of this adjustment, the roll, the paper from which is to be passed to the grooving rollers, may be adjusted to the right or left through the small distances required with the necessary accuracy. The paper is shown in dotted lines, and passes to a taking-off shaft 21 situated at the upper end of the machine, and this shaft 21 is driven through slip gearing, consisting, as shown, of a shaft 22 revoluble in a bearing in the frame 6, and carrying thereon a gear wheel 23 shown in section at Fig. 1. On the shaft 22 is a disk 24: capable of movement endwise but engaging the shaft 22 by means of a feather and groove, so that it accompanies the revolution of the said shaft, the disk 2& is held by spring pressure against the face of the gear wheel 23, by which the shaft 22 is driven. The shaft 22 is connected to the taking-off shaft 21 by a hinged joint, and the free end of the shaft 21 takes into a slot bearing in the frame 7. With this construction the shaft 21 can be turned about its hinged joint to remove the paper when rolled thereon and again .replaced in position. The gear wheel 23 of the shaft 22 is driven by a wheel 24E mounted on a stud axle, the latter wheel being driven by a gear wheel 25 mounted on the shaft 5, which shaft is driven by a gear wheel mounted on the main shaft 1 of the machine. The driving of the shaft 1 by means of the handle 2 therefore imparts rotary motion to the shaft 21, and the paper is drawn from its positlon on the shaft 14: and taken up on the shaft 21, passing on its way between the pairs of grooving rollers which impress longitudinal grooves upon opposite sides of the paper at the edges of the printed pattern upon the paper, and the adjustment of the roll contained on the shaft lt relatively to the grooving rollers is effected by means of the hand lever 19.

Paper grooved in this mannerand such grooving operation may be performed at or near the place where the paper is to be hungmay be covered with paste in the usual way and applied to a wall, and the unprinted edge or edges may be detached either before or after pasting. The tearing takes place down the groove without tearing into the body of the paper, and leaves an impressed or beveled edge which is very suitable for the abutment of the neXt piece of paper, and the application of the paste to the piece, while the unprinted edges are still in position, saves the paper itself being marked with paste on its face, as very often occurs when pasting a piece which is trimmed previously.

The gearing between the handle 2 and the shaft 21 should be suiiiciently quick to take up the paper as it is received after being grooved, and the tension imparted by the slip gearin 24 before described should not be sufficiently powerful to tear the paper at the grooving rollers. It is of course important that the grooving roller 3 should face the grooving roller 4:, and consequently the pair on the right-hand side of the machine is permanently fixed in position on their shafts 1 and 5 respectively. The grooving rollers 8, 8*, on the left hand side of the machine, (Figs. 1 and f) are made simultaneously adjustable on their respective shafts to the right or left to enable the distance apart of the grooves, which are to be formed in the paper, to be accurately adjusted. To this end (reference being had particularly to Fig. 4-) the roller 8 has a boss capable of sliding on the'shaft 1 and held thereto by a feather and groove, and the boss is formed with double flanges 26; between these flanges there engages a circular flange 27 on the boss 28 of the roller 8*, which boss is also capable of sliding on the shaft 5, and is held thereto by a feather and groove. lhe boss 28 is formed with a yoke 29 within which is a nut 30 engaging a screw-thread on the shaft 5'. By therefore adjusting the nut 30, both of the rollers S and 8 can be given motion of adjustment in the axial direction of the shafts 1 and 5.

In operating with this machine the roll of paper is passed on to the shaft 14: and the latter is then placed in the position shown, one end fitted into the left hand bearing 17, while the other end is passed through the slot 15 (Fig. 3) into the other bearing brackets 17, the web of paper is then passed between the grooving rollers which may be at that time separated by the operation of the eccentric shaft 13, and the end of the web is secured in any convenient manner to the shaft 21. The rollers are then brought together by operating the handle 18 and the machine is operated by turning the handle 2, while by means of the hand lever 19, the paper receives the slight lateral adjustment necessary to maintain the grooving at the edges of the printed pattern of the paper.

Nhat I claim as my invention and desire to secure by Letters Patent is 1. A machine for grooving wall-paper to facilitate the trimming thereof having, in combination, a main shaft, a second shaft parallel therewith, peripherally opposed' grooving rollers carried by said shafts in pairs arranged with reference to the edges of the printed pattern and adapted to groove the paper from opposite sides so that the outer edgings of the paper may be readily severed, a paper-roll support parallel with said main shaft and capable of endwise movement, mechanism for adjusting said roll-support to guide the paper in its passage to the grooving rollers, and driving mechanism to impart rotation to said shafts.

2. A machine for grooving wall-paper to facilitate the trimming thereof comprising a main shaft, a grooving roller fixed to said shaft, a second grooving roller on said shaft capable of longitudinal adjustment thereon, a second shaft, a grooving roller fixed to said second shaft in the same vertical plane as the roller fixed to said main shaft, a longitudinally adjustable roller on said second shaft located in the same vertical plane as the adjustable grooving roller on the main shaft, means coacting between said adjustable grooving rollers to cause their simultaneous adjustment, a feed parallel to said main shaft upon which feed shaft is placed the roll of paper to be grooved, a paperreceiving shaft to receive the grooved paper from the grooving rollers, and driving mechanism to impart rotation to said paperreceiving shaft and said main and second shafts.

3. A machine for grooving wall-paper to facilitate the trimming thereof comprising a main shaft, a second shaft parallel therewith, peripherally opposed grooving rollers carried by said shafts, a subjacent movable platform, brackets on said platform, a shaft arranged parallel to said main shaft and supported by said brackets upon which shaft is placed the roll of paper to be grooved, hand-operated mechanism for imparting endwise movement to said platform and said roll-carrying shaft, a paper-receiving shaft to receive the grooved paper from the grooving rollers, and handoperated driving mechanism to impart rotation to said paperreceiving shaft and said main and second shafts.

4:. A machine for grooving wall-paper to facilitate the trimming thereof comprising a main shaft, a second shaft parallel therewith, peripherally opposed grooving rollers carried by said shafts, standards provided with fixed bearings for said main shaft, brackets pivotally connected to said standards to support said second shaft, eccentrics in operative connection with said brackets to rock the latter and cause said second shaft to move toward and away from said main shaft, a shaft supported in said standards to carry said eccentrics, hand-operated means for imparting angular movement to said eccentric-carrying shaft, a paper-roll-carrying shaft parallel with said main shaft, and hand-operated mechanism to lmpart rotation to said main and second shafts.

5. A machine for grooving wall-paper to facilitate the trimming thereof comprising a main shaft, a grooving roller fixed to said shaft, a longitudinally adjustable sleeve mounted on said shaft, a grooving roller at one end of said sleeve, a collar at the opposite end of said sleeve, means to compel the rotation of said sleeve with said shaft, a second shaft having a screw-threaded portion, a grooving roller fixed to said second shaft in the same vertical plane as the roller fixed to said main shaft, a longitudinally adjustable sleeve mounted on said second shaft, a grooving roller at one end of said sleeve and arranged in the same vertical plane as the grooving roller on the sleeve of the main shaft, an annular flange at one end of said sleeve to engage between the collars on the sleeve on said main shaft, means to compel the rotation of this sleeve with said second shaft, a nut carried by said second sleeve to engage the screw thread on said second shaft to adjust the position of said sleeve on said shaft, a feed shaft parallel to said main shaft upon which feed shaft is placed the roll of paper to be grooved, a paper-receiving shaft to receive the grooved paper as it leaves the grooving rollers, and hand-operated driving mechanism to impart rotation to said paper-receiving shaft and said main and second shafts.

6. A machine for grooving wall-paper to facilitate the trimming thereof comprising a main shaft, means for rotating the same, a second shaft parallel therewith and geared thereto peripherally opposed grooving rollers carried by said shafts, means for moving said second shaft toward and away from said main shaft, a feed shaft parallel to said main shaft upon which feed shaft is placed the roll of paper to be grooved, hand-operated mechanism for imparting endwise adjusting movement to said feed shaft, a paper-receiving shaft to receive the grooved paper from the grooving rollers, a gear wheel concentric with said paper-receiving shaft, mechanism for imparting rotation to said gear wheel from said main shaft, an axially movable disk carried by said paper-receiving shaft, and resilient means to press said disk against said gear Wheel, whereby the paperreceiving shaft is frictionally driven.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

CHARLES GREEN, JUNR.

WVitnesses:

THOMAS "W. Roenns, WILLIAM R. MARSHALL.

Uopics of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

